in congress, you can reduce taxes on january 2 relative to the new rates that prevail starting then. >> reporter: it's a dance analysts doubt lawmakers will risk taking. >> since it will affect every voter, i suspect there whether be a deal. >> reporter: lawmakers will start next week committed to compromise. in washington, danielle lee, nbc news. >>> in health matters tonight, news for patients who take medication for high cholesterol. those two take the generic form of lipitor could check their bottles. some batches might contain small glass particles. the drug maker is recalling some 10, 20 and 40 milligram doses. there is no recall of the 80 milligram version. >>> if you have a headache, there's an app for that. they came up with a wireless intervention headache diary that records symptoms the moment they happen. >> the app, you're able to keep it with you all the time and just record. they can come online and learn progressive relaxation techniques, about how to reduce their headache. >> reporter: researchers say the data helps people learn about and avoid headache triggers. >>>